Door for elevators or other inclosures



3 SheetsSh eet 1.

(No Model.)

F. A. WINSLOW. noon FOR ELEVATORS ORYOTHER INGLOSURES. No. 549 989.

Patented Nov. 19, 1895.

AN DREW EGRAHAM. PHOTO-LWHQWASHINGTONDL.

(N 9 3 Shts-8heet 2,

' F. A. WINSLOW;

4 DOOR FOR ELEVATORS OR OTHER INGLOSURES.

No. 549,989. I Patehfged Nov. 19, 1895.

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3 SheetsSheet 3.

(N0 Moder.)

P. A. WINSLOW. DOOR FOR ELEVATORS OR OTHER INGLOSURES.

Patented NQY. 19, 1895.

UNITED FRANCIS A. WINSLOW, or on oAeo, ILLINOIS, ASSIGNQR o THE w NsLow' BROTHERS COMP NY QR lhhlhei i DO FOR ELEVATQRS R QTHEB '.NQ;- Q$.U-RS,

PE IF CA ION forming p t of Letters Fatent No. 549,989, dated November 1 1 95.

Application filed l'anuary 14 1895 l Serial, o 534,793. (1Y0 model.)

To aZl whom it. mag concern:

Be it known that I, FRA'iiors' A. WrNs ow, a citizen of the United States of America, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful'lmprovements in Doors for Eleva tors or other Inclosures, of which the following is a specification."

My invention relates to sliding doors of the above class which are arranged in pairs and which it is desirable to open or close together. Such doors areused upon elevator 'sh'a'fts'and similar constructions when a single 'door does not give a sufficient opening.

The purpose of the invention is to provide a suitable'connection between the two doors whereby the opening or'closing of one will.

open or close the other, and, furthermore, as an additional purpose the invention furnishes a construction which enables'the entire opening in which the doors travel back and forth to be cleared for the passage of large and bulky freight.

The invention is illustrated by means of five figures, of which- Figure 1 is a side elevation of a pair of elevator-doors and'a portion of the inclosure be tween the two, said view being taken from the interior of the elevator-shaft and showing the doors in their closed position. Fig. 2 is a similar view of two pairs of elevatordoors, the View being taken from the same direction, one of said pairs of doors being shown in the ordinary open position and the other pair being shown in their position when the entire double opening is cleared for the passage of freight. Fig. 3 is a vertical section in line 3 3 of Fig. 1, the parts being shown on a much larger scale and it being therefore necessary to break away certain of the unimportant portions to bring the view within the limits of the sheet. Fig. 4 is a horizontal section of line 4 4, Fig. 3, the portions being shown upon the same scale and being also broken away at certain points to condense the important portions; and Fig. 5 is a horizontal detail section in line 5 5 of Fig. 1.

Looking at Fig. 1, twodoors are shown at A A within an opening inclosed by a common sill B, a common lintel O, and the two jambs D E. The opening is substantially three times the width of one of the doors, and the pa e we n the 1. 9. 3Wh nQlQSe liSOCC PM b sr lle which s adapt d t e. ee 'h ea h r n terd sc ib d p n e. htel shippers a do ih et a k G G;

k h sh At he m dd e p i the 9 S111 Ben hhfish haPHiS emo bly ecure by means ofstraps h h, the former of which forms a socket for the end of the bar, andithje latter, which is in fact a latch, is pivoted at -h and hooked over a screw 71 This latch or h o Show a pen in the. r -h d door of Fig, 2'. The top of the bar H, which a hes a h. a h Ordina y latch, as pi oted to it the middle portion of a lever l, curved vertically in opposite directionsat its opposite ends and pivoted to the similarlycurved ends of two links or arms J K, extending across the two doors and pivoted to the same at their outside edges. The curvature of the ends of the middle lever and the links throws the pivotal points out of line, so that while the main portions of the lever and links are substantially horizontal the pivotal points of the same are thrown sufiiciently out of line to avoid locking the same against an end thrust. The left-hand door is shown as provided with an ordinary gravity-latch L, operated by a vertical rod M, having at the top a knob N.

In opening the doors the knob N is first raised and then shoved toward the right, forcing the levers in the directions shown by the two arrows and consequently opening the right-hand door to the same extent as the left-hand. In closing the door the operation is reversed, and this link-and-lever connection which has just been described makes the operation of the two doors as simple as the operation of a single door. As the doors are opened, they pass one in front of the other and as they are closed they strike against stops 0 P Q R. Of these the stop 0 consists of a bracket (see Fig. hinged to a plate 0, fastened to the jamb E, so that it can be swung into the position shown in dotted lines in the figure to allow the door to slide past it when desired. The stops Q R consist of plates pivoted to the tracks G G 011 the opposite sides from the hangers a a and having pins g, which may be thrust into or withdrawn from holes q, extending through the tracks, so that the pin may be interposed in the path of the hanger as it moves back and forth. These pivoted stops are provided so that they maybe thrown out of operation when it is desirable to move the doors to the right beyond the closed position of the door A.

The central grille F is held in position by pins f, extending into sockets in the sill B, and by thrust-bolts f, entering sockets c in the lintel G.

hen it is necessary to use the entire openin g between the jambs, the doors are opened into the position shown in Fig. 2, the hook or latch h is disengaged from the screw it", and the bar II is lifted from the socket h and swung upward into a hook at at the top of the doors. The stops 0 Q Rare then thrown out of operative position and the doors pushed to the right into the position shown in Fig. 2. The thrust-bolts f are then withdrawn and the grille F taken up, leaving the entire opening free from obstruction.

I claim as new and desire to secure by Letters Patent 1. The combination with a pair of sliding doors and their inclosure, of a horizontal lever pivoted between its ends upon a pivot stationary with reference to the inclosure, said lever being curved upward at one end and downward at the other and a pair of horizontal links pivoted, respectively at one end to the respective doors and curved at the other end to correspond with the adjacent end of the lever and pivoted thereto, whereby when the lovers and links are extended they may lie substantially in the same horizontal line and yet the pivotal points between the lever and the links may be thrown out of said line to prevent the lever from looking the doors; substantially as described.

2. The combination with the doors, A, A, and their inclosure, of the bar, II, removabl y secured to the inclosure, the lever, I, pivoted between its ends to the bar, the links, J, K, pivoted, respectively, to the two doors at one end and at the other end to the opposite arms of the lever, I, and the hook, or rest, a), secured to one of the doors and adapted to sustain the bar, 11, when detached from the inclosure; substantially as described.

The combination with the sill, jambs and lintel of the inclosure, of theremovable grille, F, centrally located within the opening, the tracks, G, G, supported from the lintel, the doors, A, A, provided with a link and lover connection mounted upon a pivot suitably supported from the inclosure, but detachable therefrom to enable the two doors and their connecting devices to be moved laterally from the opening and a series of door stops provided with means whereby they may be thrown out of operation to enable the doors to be pushed beyond their normal limit of motion; sulgistantially as described.

FRANCIS A. \VINSLOXV.

\Vitnesses: CHAS. P. SAXE, STUART J. MCKAY. 

